1. [root@dev-ntp-server ~]# nslookup 10.182.200.100
    2. Server: 10.182.211.82
    3. Address: 10.182.211.82#53
    4. 100.200.182.10.in-addr.arpa name = dev-ntp-server.test.boccfc20.cn.
    5. [root@dev-ntp-server ~]# nslookup dev-ntp-server.test.boccfc20.cn
    6. Server: 10.182.211.82
    7. Address: 10.182.211.82#53
    8. Name: dev-ntp-server.test.boccfc20.cn
    9. Address: 10.182.200.100
    10. [root@dev-ntp-server ~]#

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